Template:Silvermoon Portal strategy
Although not the best possible spell, (consider 
Mark of the Wild + a 2-cost minion), the random 2-cost minion summoned creates a lot of chances. From an unlucky Ancient Watcher when your deck has no Silences, to a Millhouse Manastorm without the Battlecry activating, or even a lucky 
Totem Golem, the possibilities are endless.
This card works really well with Sword of Justice and even more with 
Righteous Cause.
You can use it on control decks for a buff plus a minion or a tempo oriented decks, since you can play it on cards like Fjola Lightbane, Eydis Darkbane, 
Djinni of Zephyrs, 
Dragonkin Sorcerer, since they got extra effects when targeted by your cards. For example, if you play it on 
The Voraxx, it will replay it on its plants and the Djinni will replay the spell on himself.
When 
Lynessa Sunsorrow replays the Portal, she will summon the random minion, still counting for Righteous Cause but not for The Last Kaleidosaur. While Brann Bronzebeard is active, her Battlecry will be replayed, therefore, she will summon additional minions.
Paragon of Light makes a good combination too. As she gets the Taunt, you will have an additional minion for trades.
Brazen Zealot got another good synergy, because the additional summon counts for her bonus attack.
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